The answer to this is .960
If 0.04x = 56 days
0.01x = 14 days
x = 14*100 = 1400 days
Answer:
x = 30
Step-by-step explanation:
In the figure attached,
Two lines are parallel and one line having two adjacent angles (4x)° and (x + 30)° are the transverse.
Sum of interior consecutive angles = 180°
So the sum of these angles = 180°
(4x)° + (x + 30)° = 180°
(4x + x) + 30 = 180
5x + 30 = 180
5x = 180 - 30
5x = 150
x = 30
Therefore, value of x = 30
Answer:
Null hypothesis: the variance in hours of usage for talking is not greater than the the variance in hours of usage for internet.
: 
Alternative hypothesis: the variance in hours of usage for talking is greater than the the variance in hours of usage for internet.



Step-by-step explanation:
Let
and
be the two variables that represents the battery life in hours for talking usage and battery life in hours for internet usage respectively.
The hypothesis can be formulated as:
Null hypothesis: the variance in hours of usage for talking is not greater than the the variance in hours of usage for internet.
: 
Alternative hypothesis: the variance in hours of usage for talking is greater than the the variance in hours of usage for internet.

The standard deviation for the battery usage for talking is :

The standard deviation Is:




The standard deviation for the battery life usage for the internet is :




Thus; the standard deviation is:



